I have a sweet 2 week old baby girl. During the night she wakes up every 2 - 2.5 hours to feed. During the day she can go much longer without eating (4 hours). She is gaining weight well. So... I know newborns wake up a lot but oh my goodness, I would love to sleep for 3-4 hours in a row once at night. Is this something we just need to live with until she is older or is there anything we can do to encourage baby girl to sleep a little longer at night? please?